1 (used about land) not used for farming, industry, building, etc ﹙土地﹚未开垦的，未利用的，未开发的: The coastline is still largely undeveloped. 沿海地区的大部份土地仍未开垦。 undeveloped countryside/villages 未开发的农村/村庄

2 (used about a country) not having modern industries, and with a low standard of living ﹙国家﹚不发达的，落后的 ☞ Look at underdeveloped. 参看 underdeveloped。